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Title: As the barometric pressure increases, there is an increase in the density of the gas being breathed. ... Post by: dcrone on Feb 25, 2018 As the barometric pressure increases, there is an increase in the density of the gas being breathed. The increase in gas density in turn causes a(n):
a. Decrease in work of breathing c. Increase in work of breathing b. Increase in FIO2 d. Decrease in FIO2 Q. 2 A patient is receiving 0.30 FIO2 with a barometric pressure at 750 mm Hg. The partial pressure of carbon dioxide (PCO2) for this patient is 70 mm Hg; the partial pressure of arterial oxygen (PaO2) is 60 mm Hg. The PAO2 for this patient is _____ mm Hg. a. 100.2 c. 160.0 b. 123.4 d. 181.7 Q. 3 A patient is receiving 0.60 FIO2 with a barometric pressure of 755 mm Hg. PCO2 is 56 mm Hg and PaO2 65 mm Hg. The PAO2 for this patient is _____ mm Hg. a. 265.6 c. 354.8 b. 300.9 d. 404.0 Q. 4 ______ law states that if the temperature of a gas remains constant, the volume of a gas is in-versely related to its pressure. a. Henry's c. Dalton's b. Boyle's d. Laplace's Q. 5 Dalton's law states that: a. The total pressure of a gas mixture equals the sum of the partial pressure of each constituent gas in the mixture. b. The pressure within a liquid sphere is in-fluenced by the surface tension forces of the liquid and the size of the sphere. c. There is a direct relationship between the absolute pressure of a gas and its temper-ature. d. The volume of a gas is inversely related to its pressure. Title: As the barometric pressure increases, there is an increase in the density of the gas being breathed. ... Post by: Awura on Feb 25, 2018 The increase in gas density results in increased work of breathing, which is not noticeable and can easily be accommodated in healthy subjects. In patients with reduced lung reserves, however, this increased work can present problems and necessitate ventilatory support. Formula: PAO2 = (Barometric pressure PB pressure of water vapor PH2O) FIO2 PaCO2 (1.25). PAO2 = (750 mm Hg 47) 0.30 70 (1.25). PAO2 = 210.9 87.5. PAO2 = 123.4 mm Hg. Formula: PAO2 = (PB PH2O) FIO2 PaCO2 (1.25). PAO2 = (755 47) 0.60 56 (1.25). PAO2 = 424.8 70. PAO2 = 354.8 mm Hg. Boyle's law states that if the temperature of a gas remains constant, the volume of a gas is in-versely related to its pressure. Therefore, as pressure is exerted on a container, the gas volume within the container decreases. Dalton's law states that the sum of the partial pressures of a gas mixture equals the total pressure of the system. Laplace's law states that the pressure within a liquid sphere is influenced by the surface tension forces of the liquid and the size of the sphere. Gay-Lussac demonstrated that if the volume of a gas is held constant, the gas pressure rises as the absolute temperature of the gas increases. Boyle's law states that when the temperature is held constant, the volume that a gas occupies is inversely proportional to the absolute pressure exerted on it. Title: As the barometric pressure increases, there is an increase in the density of the gas being breathed. ... Post by: dcrone on Feb 25, 2018 God bless you! Helped my grade so much.
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